Abstract: The utility model relates to a tubular metal resonator quick -operation joint improves stinging a structure of grabbing, stings and grabs to taking open -ended annular piece, sting the one end of grabbing to be provided with claw, and the outer wall of the other end is provided with cyclic annular positioning seat, and the middle part inner wall is provided with the latch, the setting of elastically positioned spare sting grab with spacing fixer between and lie in and sting the outside of grabbing the piece, the utility model has the characteristics of double locking structure, elastically positioned spare have abundant flexible space, have rational in infrastructurely, and locking effect is good, and is reliable stable.
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